component
PAM8904JER
Public Unreviewedby Ray
Diodes Incorporated Audio Power OpAmps, TQFN-16-EP(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownPAM8904JER
Diodes Incorporated · Audio Power OpAmps · TQFN-16-EP(3x3)
PAM8904JER from Diodes Incorporated, in a TQFN-16-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | EN1 | input | Charge pump mode select 1. Digital input used with EN2 to select shutdown, 1x, 2x, or 3x charge pump modes. VIH >= 0.5*VIN, VIL <= 0.4V. |
| 2 | EN2 | input | Charge pump mode select 2. Digital input used with EN1 to select shutdown, 1x, 2x, or 3x charge pump modes. VIH >= 0.5*VIN, VIL <= 0.4V. |
| 3 | DIN | input | Signal input. Rectangular pulse drives the piezo. DIN=0 forces shutdown. Typical input frequency 4kHz. |
| 4 | NC | unconnected | No connection. Leave floating or tie to GND. |
| 5 | CN1 | passive | Charge pump flying capacitor 1 negative terminal. Connect 1uF capacitor between CP1 and CN1. |
| 6 | GND | power_in | Ground reference for the device. |
| 7 | VO2 | output | Positive output to piezo sounder. Drives one terminal of the ceramic/piezo transducer (single-ended or differential with VO1). |
| 8 | NC | unconnected | No connection. Leave floating or tie to GND. |
| 9 | VO1 | output | Negative output to piezo sounder. Drives the opposite terminal of the ceramic/piezo transducer (single-ended or differential with VO2). |
| 10 | CN2 | passive | Charge pump flying capacitor 2 negative terminal. Connect 1uF capacitor between CP2 and CN2. |
| 11 | CP1 | passive | Charge pump flying capacitor 1 positive terminal. Connect 1uF capacitor between CP1 and CN1. |
| 12 | NC | unconnected | No connection. Leave floating or tie to GND. |
| 13 | VOUT | power_out | Boost output. Charge pump output providing 1x/2x/3x VIN (up to ~12V typ, 13.5V max). Requires 2.2uF output capacitor to GND. |
| 14 | CP2 | passive | Charge pump flying capacitor 2 positive terminal. Connect 1uF capacitor between CP2 and CN2. |
| 15 | VIN | power_in | Power supply input. Operating range 1.8V to 5.5V. Requires 2.2uF input decoupling capacitor to GND. |
| 16 | NC | unconnected | No connection. Leave floating or tie to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | TQFN-16-EP(3x3) |
| Category | Op-amp/Cmp |
| Pins | 16 |
Ordering variants
Same part, different packaging or reel option.
PAM8904JERPAM8904JERJPRPAM8904JERGPR
CAD (KiCad official)
- Symbol:
PAM8904JER - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: TQFN-16-EP(3x3) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (10 pp, sha256
49d251123d3e4e62, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).